CVE-2021-46441 Explained : Impact and Mitigation
Learn about CVE-2021-46441, a vulnerability in D-Link DIR-825 G1 routers allowing execution of arbitrary system commands. Find mitigation steps and preventive measures for enhanced security.
CVE-2021-46441 relates to a vulnerability found in the "webupg" binary of D-Link DIR-825 G1 routers, allowing attackers to execute arbitrary system commands.
Understanding CVE-2021-46441
What is CVE-2021-46441?
The vulnerability in the "webupg" binary of D-Link DIR-825 G1 routers permits attackers to run arbitrary system commands by exploiting the "cmd" parameter without proper verification.
The Impact of CVE-2021-46441
The security flaw enables unauthorized individuals to execute commands on the underlying system, potentially leading to data theft, system compromise, and unauthorized access.
Technical Details of CVE-2021-46441
Vulnerability Description
The issue arises from insufficient parameter validation in the "webupg" binary, creating a pathway for attackers to execute unauthorized system commands.
Affected Systems and Versions
- Product: D-Link DIR-825 G1
- Vendor: D-Link
- Versions Affected: All
Exploitation Mechanism
Attackers can leverage the "cmd" parameter in the "webupg" binary after gaining authorization to execute malicious system commands.
Mitigation and Prevention
Immediate Steps to Take
- Disable remote management access if not essential
- Implement strong, unique passwords for device access
- Regularly monitor network traffic for anomalies
Long-Term Security Practices
- Keep firmware and software up to date
- Conduct regular security audits and penetration testing
Patching and Updates
Ensure to apply security patches provided by D-Link to address the vulnerability.